Air valve



April 8 1924. r 1,489,396

G. ODUM AIR VALVE Filed June 16. 1921 2 Sheets-Sheet 1 d. Udam.

April 8 1924. v 1,489,396

G. ODUM AIR VALVE Filed June 16 1921 2 Sheets-Sheet Patented Apr. 8, 1924. a

1 UNITED STATES PATENT OFFICE.

GEORGE ODUI, p]? CHICAGO, ILLINOIS.

AIR VALVE.

, Application filed June 16,

invented certain new and useful Improvements in Air Valves, of which the following is a specification. I

.J This invention relates to an improvement;v in air valves and particularly to an air valve designed for use in operating clutches by air, as an equalizing valve, and for use on ore bridges.

The invention com rises a-valve having independently opera le. valve members, whereby distribution of pressure to two or more independent oints may be simultaneously or indepen ently controlled. Fur-' thermore, the valve is constructed to utilize the air pressure within the valve as a means for holding the valve member to its seat, to thereby avoid the necessity for the accurate fitting and seat grinding usually employed in valves of this type.

In the drawings:

Fig. 1 is a face view of the valve.

Fig. 2 is a side elevation thereof.

Fig. 3 is a vertical section.

Fig. 4 is a face view of one of the valve discs.

The improved valve comprises what may betermed a shell or casing 1, formed as a cylindrical body having end flanges 2. End plates 3, of duplicate construction, are adapted to close the ends .of the body, said end plates bein slightly offset to fit within the end edges 0 the casing as at 4 and overlying the flanges 2, to which flanges said end plates are secured by bolts 5.

Opposing valve members 6, of duplicate formation, are arranged for a rotary fit with in the casing, the proximate surface of these valves being formed with bosses 7 to receive the end coils .of a coil s ring 8, where- 'by the valve members are eld in spaced relation and in close contact with the re-' spective end plates. The casing 1 is formed at its lower end with an inlet projection 9 to deliver compressed air or other fluid under pressure into the casing between the valve members, this inlet projection preferably interiorlyand exteriorly threa ed to provide for the connection of any service conduit or pipe'thereto. Y

Each end plate is provided with three outlets formed as an integral projection from 1981. Serial No. 478,191.

said end plate with the terminals of said outlets threaded for the connection of service pipes thereto. The central outlet 10 is arranged in the same vertical plane as the inlet 9 and at the lowermost portion of the 7 end plate, while the remaining outlets 11 and 12 are arranged approximately in trans-- versev alignment at rig t angles to the plane ofthe inlet. These outlets communicate with the interior of the valve casing, ex-

cept for the interposed valve member.

The valve members 6 are formed on the a surface next the end platesB with a semiannular channel 13, which in the normal position of the valve,occupies the upper portion of said face. Immediately below the terminals of the channel 13,,the valve member is formed with ports 14 and 15, so spaced that in the normal position of the valve member, they are arrangedbetween the central outlet 10'and the side outlets 11 and 12. Thus the interior of the valve casing can only communicate with the re: spectlveoutlets thru the ports 14 and 15.

Eachend plate is centrally formed with an outstanding sleeve member 16, which immediately beyond the outer surface of the end plate, is reduced in interior diameter as at 1 or of the sleeve member, conforming to both A turning plug 18 fits within the interithe normal and reduced diameter, the I turning "plug is formed at its inner end with a non-circular projection 19 adapted to accuratel fit a correspondin recess 20 in the va ve member, whereby the valve member may be turned in operation of the plug. The outer or free end of eachplug presents an angular extension 21, and anoperating lever 22 is provided having an opening 23 to correspond to and fit the ,projection 21, whereby in the operation of the lever, the plug and thereby the valve member may be actuated. The operating lever has an inwardly ofi'set enlargement 24 cored at 25 to receive a locking pawl 26 with which aspring 27, seated in the cored portion 25 of the enlar ement. cooperates to maintain the locki g pawl in operative position. The sleeve} member 16 is formed ,at the outer. end with a lateral' is formed with looking notches 29 what may be termed vertical position,

" casing and formed with a channel to estabthat is withthe awl 26 thereof engagmg' the central locking notch 29, the valve is in a closed or. neutral position, the channel 13 communicating at its respective ends with the outlets 11 and 12, while the ports 14 and 15 are closed by the end plate. If the lever is moved to one of the side notches, as for example, toward the ri ht as shown in F1g.- 1', the port 14 will register with the outlet 11, while the port 15 registers with. the outlet 10. Compressed air from the interior of the casing is thus free to pass thru said outlets, If the operating lever is moved to the other extreme position, the outlets 10 and 12 are in communication with the interior of the casing. In the neutral position, it will be understood that the outlets 11 and 12 are in communication thru the channel 13 of the valve plate, as shown in Fig. 1, and air compression is thus equalized thru the valve.

In the construction described, it is noted that the valve parts are duplicated, and that thereby the fluid under pressure may be similarly distributed to two independent sources or inde endently controlled to or from said jsources y proper operation of the operating levers for the respective valve members. It

will be further noted that the interior of the casing is 0 en to the pressure in the motive fluid, and ence the valves are held by this pressure a inst the end plates, and are thus held m substantially non-leakage relation in the valve casing, without the necessity of the usual grindi of the valve seats for the accurate fitting o the valve members.

Claims: I

1 1. A valve including a cylindrical cas' having an inlet and a plurality of sp outlets, a rotary disc valve mounted in said -lish independent communication between two of the outlets in the neutralposition of the valve'disc, said valve disc being also formed with spaced openings adapted in movement in'one direction to establish communication between the inlet and at least two of the outlets and in movement in the o posite direction to establish communicat1on between the inlet and atleast two outlets, said valve in either position always communicating with a particular one of t e outlets.

2'. A valve including a cylindrical casin formed with an inlet, end plates carrie thereby provided with a plurality of outlets, a pair of disc valves mounted in the casing, said inlet directing pressure between said valves to force them outwardly for sealing cooperation with the casing, said valves being formed to provide communication between the inlet and one or more outlets in either one of two positions of said valves, and to provide communication between two or more of said outlets when said valve is in position to cut 011' the inlet.

3. A valve includin a. cylindrical casing formed with an inlet in the central portion, end plates secured to the casing, each formed with a plurality of outlet ports, a pair of disk' valves mounted in the casing, one adjacent each end plate, resilient means between the valves for forcing them toward the end plates, and means in the end plates for operating the valves, said valves being formed to provide communication between the inlet'and one or more outlets and to provide communication between two or'more outlets when the inlet is cut oil.

In testimony whereof I allix my signature. i

GEORGE ODUM. 

